Init handler to let relationships live on tables other than the table they operate on.
Overrides HandlerBase::init
public function init(ViewExecutable $view, &$options) {
$this
->setOptionDefaults($this->options, $this
->defineOptions());
parent::init($view, $options);
if (isset($this->definition['relationship table'])) {
$this->table = $this->definition['relationship table'];
}
if (isset($this->definition['relationship field'])) {
// Set both realField and field so custom handler can rely on the old
// field value.
$this->realField = $this->field = $this->definition['relationship field'];
}
}